New craft said to be free of vibration and flutter characteristics through full operation range, including cruising speed of 65 mph and top of 90-100 mph; powered by 90-hp, 4-cyl Franklin air cooled engine; gross weight 1000 lb. (see also Aero Digest v 43 n 5 Nov 1943 p 188)
PV-2 helicopter makes first public flight
Aviation
Aviation ; 42 , n 11
1943
Article (Journal)
English
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PV-2 helicopter makes first public flight
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